摘要:
A method and system for guiding a vehicle comprises a location determining receiver for collecting location data for the vehicle. A vision module collects vision data for the vehicle. A location quality estimator estimates the location quality data for the location data during an evaluation time window. A vision module estimates vision quality data for the vision data during the evaluation time window. A supervisor module selects at least one of a location data weight and a vision data weight based on the quality data.
摘要:
A high-impact, energy-absorbing vehicle barrier system generally includes a substantially rigid outer containment wall coupled via strap assemblies with an energy-absorbing inner impact wall, and energy-absorbing cartridges strategically positioned between the impact wall and containment wall. The impact wall is constructed of a number of tubes coupled with one another to present a substantially smooth, uniform surface to passing vehicles. The energy-absorbing cartridges generally consist of a foam member or a number of foam sheets which compress and crush between the containment wall and impact wall to absorb energy from an errant vehicle striking the face of the impact wall, while the deflection and deformation of the impact wall tubes dissipates additional energy to reduce peak decelerations and mitigate the severity of high-energy vehicular impacts. Internal splice units and the strap assemblies provide for relatively easy and quick replacement of damaged impact wall sections and energy-absorbing cartridges.
摘要:
A single-sided crash attenuation cushion system having an impact head and three stage energy absorption mechanism. The energy absorbing mechanism has a mandrel for deforming thin-walled tubes in a controlled collapse to absorb impact forces from a colliding vehicle. The third stage of the absorption mechanism includes an additional deformable compressible tube between the fixed-object hazard and the thin walled tubes.
摘要:
A machine is disclosed for dispensing a comestible product. The machine has a delivery outlet (18) through which the product passes during dispensing operations, and means (22, 26) for sterilising the outlet during periods between dispensing operations by exposing the outlet to a sterilisation fluid containing ozone. The mouth of the outlet (18) includes a non-drip valve (20) and the machine is constructed in a manner to prevent exposure of the product (10) stored in the machine to ozone.
摘要:
A method and assembly for recovering fluids from, or injecting fluids into, a well having a Christmas tree; the fluids typically flow between first and second flowpaths in a continuous path. The assembly may be located within the main bore, or a side passage of the Christmas tree. Embodiments of the invention allow the fluids to be fed to a processing apparatus, (e.g. a pump or chemical injection apparatus) for treatment, before being returned to the Christmas tree. Optionally, the assembly may include a pump located inside the Christmas tree body.
摘要:
Embodiments of the present invention relate to a data processing system including means to play an interruptible or skipable video sequence; and a random number generator for generating a random number associated with an interruption of the interruptible or skipable video sequence.
摘要:
Esterase enzymes derived from various Staphylothermus, Pyrodictium, Archaeoglobus, Aquifex, M11TL, Thermococcus, Teredinibacter and Sulfolobus organisms are disclosed. The enzymes are produced from native or recombinant host cells and can be utilized in the pharmaceutical, agricultural and other industries.
摘要:
A purified thermostable enzyme is derived from the archael bacterium Thermococcus GU5L5. The enzyme has a molecular weight of about 68.5 kilodaltons and has cellulase activity. The enzyme can be produced from native or recombinant host cells and can be used for the removal of arginine, phenylalanine, or methionine amino acids from the N-terminal end of peptides in peptide or peptidomimetic synthesis. The enzyme is selective for the L, or `natural` enantiomer of the amino acid derivatives and is therefore useful for the production of optically active compounds. These reactions can be performed in the presence of the chemically more reactive ester functionality, a step which is very difficult to achieve with nonenzymatic methods.
摘要:
A laser machining (including marking) method that employs a diode laser pumped solid state laser is controlled by a computer that contains a program for the interaction of the laser beam with a workpiece. The pumping of the laser is synchronised with the action of the beam in a series of active machining periods alternating with inactive non-machining periods. In order to avoid overheating of the active element, the duty cycle of these periods is maintained below a chosen value and no active period is allowed to exceed a selected percentage of the thermal time constant of the active element.
摘要:
A device for performing immunoassays which has an external housing, a sample container provided with reagents that can be inserted into the external housing, a material container for an absorbent material and membrane-bound antibody or antigen that can be inserted into the sample container, a holder for the material container that can be mounted on the external container, and a spacer that can join the holder and the sample container. When the spacer is in place, the absorbent material is held above the portion of the sample container that holds the sample and when the spacer is removed, the absorbent material is lowered into the sample-containing portion of the sample container. The external housing may also include a container for developer.